Calculation of the heat transmittance coefficient Uw
Temperature
Glass edge-
area
Results
Calculated heat transmittance coefficient: Uw 0.000 W/(m²K)
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How was it calculated?
The values given are only examples, which apply to the frame profiles and glazing shown on the basis of the data sheets of the Bundesverband Flachglas e.V. (Federal Flat Glass Association). They do not replace the exact structural verification by an officially recognised body.
No image available
Image description: Cross-section of the window sash showing the isotherm: the blue line approximately corresponds to the 0 °C isotherm, the red line approximately to the 10 °C isotherm. The example figure only represents the approximate course of the isotherms and varies with the air temperatures outside and inside, as well as the ψ value. θSi denotes the temperature at the thermal bridge in the transition area between the window frame and the glass.